Issue 1, 2024

Critical challenges and opportunities for the commercialization of alkaline electrolysis: high current density, stability, and safety

Abstract

Alkaline electrolysis technology, which enables the production of “green hydrogen,” holds significant importance in the global pursuit of carbon neutrality. The successful implementation and widespread adoption of this technology rely heavily on the development of efficient and durable electrocatalysts capable of operating at high current densities and ensuring safety. In recent years, there has been remarkable progress in research endeavors aimed at meeting industrial requirements, resulting in the design and synthesis of various catalysts tailored for current densities exceeding 200 mA cm−2 and possessing excellent stability. This review highlights recent advancements in the field, focusing on key factors influencing the catalytic performance in high-current-density electrocatalysis, including charge transfer, mass transport, and intrinsic activity. The mechanisms underlying catalytic degradation are discussed, and design strategies for creating highly stable electrocatalysts are presented. Furthermore, strategies for ensuring the safety of alkaline electrolysis are discussed. Finally, future directions and perspectives in this emerging field are provided, outlining potential areas of exploration and development.

Graphical abstract: Critical challenges and opportunities for the commercialization of alkaline electrolysis: high current density, stability, and safety

Article information

Article type
Review Article
Submitted
30 Jūn. 2023
Accepted
15 Sept. 2023
First published
23 Sept. 2023

Mater. Chem. Front., 2024,8, 41-81

Critical challenges and opportunities for the commercialization of alkaline electrolysis: high current density, stability, and safety

J. Kwon, S. Choi, C. Park, H. Han and T. Song, Mater. Chem. Front., 2024, 8, 41 DOI: 10.1039/D3QM00730H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements